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4MA1/2F Jun 2025, Question 19: Describing Transformations

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2F (Foundation) · Calculator · 5 marks

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The question, in short

Use a grid to perform an enlargement of an L-shaped figure and to identify the single transformation linking two triangles.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Part (a) · 2 marks

Draw shape A enlarged by scale factor 3 using (0, 1) as the centre of enlargement.

  1. 1Measure each vertex from the centre (0, 1) and multiply by 3
  2. 2(1, 1) is 1 right, 0 up → 3 right: (3, 1)
  3. 3(3, 1) → (9, 1); (3, 4) is 3 right, 3 up → (9, 10)
  4. 4(2, 4) → (6, 10); (2, 2) → (6, 4); (1, 2) → (3, 4)
  5. 5Join the points in order

AnswerL-shape with vertices (3, 1), (9, 1), (9, 10), (6, 10), (6, 4), (3, 4)

Part (b) · 3 marks

State the single transformation that takes triangle P to triangle Q, giving all its details.

  1. 1P is upside down in Q, so it is a half turn
  2. 2Rotation 180°
  3. 3Centre is the midpoint of matching points (2, 2) and (8, 8)
  4. 4Centre (5, 5)

AnswerRotation 180° about (5, 5)

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